Chemistry 1A Review Callie rogers 2015-16

In the diagram provided, the element with the most coulombic attraction between its protons and electrons is: a. Lithium b. Sodium c. Potassium d. Nitrogen

The elements in the diagram provided are:. a The elements in the diagram provided are: a. A mixture of metals and nonmetals. b. Metals in the same row of the periodic table. c. Metals in the same column of the periodic table. d. Nonmetals in the same column of the periodic table.

The number of protons in an atoms allows us to tell the difference between: a. The charge b. The element c. The isotope d. None of the above

The number of neutrons in an atom allows us to tell the difference between: a. The charge b. The element c. The isotope d. None of the above

Magnesium – 12 has:. a. 24 protons, 12 neutrons, and a. mass of 24. b Magnesium – 12 has: a. 24 protons, 12 neutrons, and a mass of 24 b. 12 protons, 12 neutrons, and a mass of 24 c. 12 protons, 24 neutrons, and a mass of 12 d. 12 protons, 12 neutrons, and a mass of 12

7 protons corresponds to which atom. a. Lithium. b. Beryllium. c 7 protons corresponds to which atom? a. Lithium b. Beryllium c. Nitrogen d. Carbon

In the above experiment, which variable is held constant. a In the above experiment, which variable is held constant? a. The distance between charges b. The amount of positive charge c. The force of attraction between the 2 particles d. Nothing was held constant

What would be the attractive force if there were 5 positive charges. a What would be the attractive force if there were 5 positive charges? a. 2.3 x 10-8 b. 5.0 x 10-8 c. 9.6 x 10-8 d. 11.5 x 10-8

In the above experiment, what is the independent variable. a In the above experiment, what is the independent variable? a. The amount of positive charge b. The amount of negative charge c. The distance between charges d. The force of attraction between the 2 particles

Electrons are: a. Positive b. Negative c. Neutral d. None of the above

Which of the following would form a positive ion. a. Magnesium. b Which of the following would form a positive ion? a. Magnesium b. Nitrogen c. Carbon d. Silicon

Lithium form which ion when placed in solution. a. +1. b. +2. c. -1. d

When forming an ion, an atoms loses or gains:. a. Protons. b. Neutrons When forming an ion, an atoms loses or gains: a. Protons b. Neutrons c. Electrons d. Isotopes

What is the average atomic mass of Chlorine? a. 17 b. 18 c. 35.45 d. 35

Average Atomic Mass is calculated by:. a Average Atomic Mass is calculated by: a. Percentage of natural abundance of isotopes b. Percentage of natural abundance of ions c. Percentage of protons in the nucleus of the atom d. Percentage of neutrons in the nucleus of the atom

107Ag with mass of 106.905 amu and 51.84% abundance 109Ag with mass of 108.905 amu and 48.16% abundance Using the information provided above, what would be the correct equation to calculate average atomic mass?   a. [(106.905)(51.84)+(108.905)(48.16)]/100 b. [(106.905)(48.16)+(108.905)(51.84)]/100 c. [(106.905)(51.84)+(108.905)(48.16)] d. [(106.905)(0.5184)+(108.905)(0.4816)]/100

As an electron gets closer to the nucleus the ___________ to the nucleus gets _________. a. Repulsion, weaker b. Repulsion, stronger c. Attraction, weaker d. Attraction, stronger  

For an electron to move from an energy level close to the nucleus to an energy level far from the nucleus it would need to _________ energy. a. Lose b. Gain c. Store d. Release

1s22s22p63s23p64s23d6 is the electron configuration for which element 1s22s22p63s23p64s23d6 is the electron configuration for which element? a. Iron b. Cobalt c. Argon d. Zinc  

Which term represents the amount of energy needed to remove an electron from an atom? a. Electronegativity b. Attractive Force c. Ionization Energy d. Potential Energy

Of the following, which atom has the largest radius. a. Lithium. b Of the following, which atom has the largest radius? a. Lithium b. Sodium c. Fluorine d. Oxygen

In general, what is the trend in electronegativity as you go down a group on the Periodic Table? a. It decreases b. It increases c. It neither increases nor decreases d. None of the above.

When 2 electrons occupy the same orbitals in the same sublevel:. a When 2 electrons occupy the same orbitals in the same sublevel: a. They have the same spin b. They have opposite spins c. Their spins are random d. None of the above.